The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2001
Filed:
May. 09, 1997
Reneé A. Kozimor, Hawthorn Woods, IL (US);
Robert C. Portnoy, Houston, TX (US);
Exxon Chemical Patents, Inc., Baytown, TX (US);
Abstract
Provided are articles such as packaging materials and medical devices having enhanced tolerance to radiation and heat, produced from a blend of from about 99% to about 50% by weight homo or copolymerized polypropylene and about 1% to about 50% by weight polyethylene produced by single-site catalysis, such polyethylene having a MWD between about 1 and about 4, and a CDBI greater than about 45%. Optionally, other blend components may be added, such as hindered amine stabilizers, secondary antioxidants, clarifying nucleators and secondary antioxidants. Also provided are processes for producing such articles.